mirror of
https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
d12583fc08
I'm partly doing this because the current setup would be difficult to share with the toolchain. e.g., ProtoToCarbon isn't explorer-specific, but the only way to run it via CLI is the explorer's fuzzverter. I want a separate tool.
This change:
- Adds a //common/fuzzing:proto_to_carbon tool.
- The rest of fuzzverter is now just //explorer/fuzzing:ast_to_proto.
- The change simplifies overall handling and removes a LLVM CLI dependency.
- Stops allowing unknown fields in the proto.
- This has mostly led to forgetting to remove fuzzer inputs that were for removed features.
- Moves more non-explorer-specific bits to //common/fuzzing.
- Cleans up remaining pieces in //explorer/fuzzing
- Merges the //explorer/fuzzing proto tests, which deduplicates AstToString copies.
- These tests also had duplicate dependencies, etc -- and all complete in ~6s.
- Updates and fixes regen_corpus which was previously broken by other changes.
- Updates the README to reflect changes.
- Removes obsolete proto-fuzzer build configuration (AFAICT this is no longer needed).
107 lines
2.8 KiB
Python
107 lines
2.8 KiB
Python
# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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# Exceptions. See /LICENSE for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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load("//bazel/fuzzing:rules.bzl", "cc_fuzz_test")
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cc_library(
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name = "ast_to_proto_lib",
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testonly = 1,
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srcs = ["ast_to_proto.cpp"],
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hdrs = ["ast_to_proto.h"],
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deps = [
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"//common/fuzzing:carbon_cc_proto",
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"//explorer/ast",
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"@llvm-project//llvm:Support",
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],
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)
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cc_binary(
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name = "ast_to_proto",
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testonly = 1,
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srcs = ["ast_to_proto_main.cpp"],
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deps = [
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":ast_to_proto_lib",
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"//common:bazel_working_dir",
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"//common:error",
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"//common/fuzzing:carbon_cc_proto",
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"//explorer/ast",
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"//explorer/common:arena",
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"//explorer/syntax",
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"@com_google_protobuf//:protobuf_headers",
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"@llvm-project//llvm:Support",
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],
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)
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cc_test(
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name = "ast_to_proto_test",
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srcs = ["ast_to_proto_test.cpp"],
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args = [
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"$(locations //explorer:standard_libraries)",
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"$(locations //explorer/testdata:carbon_files)",
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],
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data = [
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"//explorer:standard_libraries",
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"//explorer/testdata:carbon_files",
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],
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deps = [
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":ast_to_proto_lib",
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"//common/fuzzing:carbon_cc_proto",
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"//common/fuzzing:proto_to_carbon_lib",
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"//explorer/syntax",
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"@com_google_googletest//:gtest",
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"@com_google_protobuf//:protobuf_headers",
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],
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)
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cc_library(
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name = "fuzzer_util",
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testonly = 1,
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srcs = ["fuzzer_util.cpp"],
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hdrs = ["fuzzer_util.h"],
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deps = [
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"//common:check",
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"//common:error",
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"//common/fuzzing:carbon_cc_proto",
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"//common/fuzzing:proto_to_carbon_lib",
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"//explorer/ast",
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"//explorer/interpreter:exec_program",
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"//explorer/interpreter:trace_stream",
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"//explorer/syntax",
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"//explorer/syntax:prelude",
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"@bazel_tools//tools/cpp/runfiles",
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"@com_google_protobuf//:protobuf_headers",
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"@llvm-project//llvm:Support",
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],
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)
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cc_test(
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name = "fuzzer_util_test",
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srcs = ["fuzzer_util_test.cpp"],
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data = [
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"//explorer:standard_libraries",
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],
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deps = [
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":fuzzer_util",
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"//common:gtest_main",
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"//common/fuzzing:proto_to_carbon_lib",
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"@com_google_googletest//:gtest",
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"@com_google_protobuf//:protobuf_headers",
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"@llvm-project//llvm:Support",
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],
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)
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cc_fuzz_test(
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name = "explorer_fuzzer",
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testonly = 1,
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srcs = ["explorer_fuzzer.cpp"],
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corpus = glob(["fuzzer_corpus/*"]),
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shard_count = 8,
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deps = [
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":fuzzer_util",
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"//common:error",
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"@com_google_libprotobuf_mutator//:libprotobuf_mutator",
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"@llvm-project//llvm:Support",
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],
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)
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